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控制理论与应用 2009
A simplified adaptive fuzzy dynamic surface control
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Abstract:
A simplified adaptive fuzzy dynamic surface control approach is proposed for a class of uncertain nonlinear time-varying time-delay systems. The common assumptions on the time-delays of the system are not required; only one fuzzy approximator is needed for compensating all the unknown functions. Thus, the structure of the controller is simplified. By constructing an appropriate Lyapunov-Krasovskii functional, we proved all the signals of the closed-loop system are semi-globally uniformly bounded. Simulation results are presented to demonstrate the effectiveness of the proposed control approach.